ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,143, issued on March 17, was assigned to Tounetsu Co. Ltd. (Shizuoka, Japan).
"Molten metal furnace" was invented by Kiyata Mochizuki (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A molten metal furnace in which molten metal leakage may be avoided or controlled and heat radiation from the furnace body may be controlled. The molten metal furnace has an outer wall on its outer periphery, a molten metal storage part for holding a molten metal therein, and an inner wall forming the molten metal storage part and having a plurality of lining layers, wherein a first lining layer of the plurality of lining layers, having a surface to be i...